报告人：Lajos Molnar（匈牙利University of Szeged）

时  间：2024年11月14日16:00

地  点：海韵园实验楼S102

内容摘要:

The study of operator means is a substantial subarea in operator theory. Those means can apparently be viewed as operations on positive (definite/semidefinite) cones in operator algebras.

In this talk, we survey results concerning the corresponding isomorphisms between such cones. We will mainly consider Kubo-Ando means, but besides them, we deal also with other types of operator means such as the Fiedler-Ptak spectral geometric mean, the Wasserstein mean... A recent related result concerning the preservers of Tsallis operator relative entropies will be presented, too.

个人简介：

Lajos Molnar，匈牙利塞格德大学终身教授，算子代数与量子信息科学方面的国际知名专家。曾获得匈牙利科学院学院奖，匈牙利科学院“Momentum（Lendület）”计划获奖者，匈牙利总统颁发的“匈牙利共和国功勋骑士十字勋章”，蒂博·谢莱纪念奖章。担任国际学术组织职位：国际量子结构协会理事；《Acta Scientiarum Mathematicarum》主编；《Acta Mathematica Hungarica》、《Aequationes Mathematicae》、《Journal of Mathematical Analysis and Application》、《Linear Algebra and its Applications》、《Linear and Multilinear Algebra》、《Operators and Matrices》、《Publicationes Mathematicae》期刊的编委；Springer出版的“Bolyai Society Mathematical Studies”书系编委。研究成果发表在《Comm. Math. Phys.》、《J. Funct. Anal.》等重要期刊上。

联系人：程庆进